That's not good to sit in one place and play the game for that many hours. I should know since I did that at 12 when my mum bought Jak and Daxter 2 for me. I literally stayed in front of the television for two days playing that game. When I realized what I was doing, I turned off the game and went to bed. I slept for a day and a half. Almost did it again when I first played Maplestory 5 years ago lol

17 hours. You can say I slept in 23 years but that is another thing that goes off topic here.
17 hours is too much. I was ten times more tired.
Totally opposite effect. When I was little 12 hours was good every now and then.
From 7-9 should be what I need these days.